地图要素图形冲突处理方法——以线状要素(道路、水系和境界)为例

doi:10.11947/j.AGCS.2015.20140129

测绘学报 ›› 2015, Vol. 44 ›› Issue (5): 563-569.doi: 10.11947/j.AGCS.2015.20140129

地图要素图形冲突处理方法——以线状要素(道路、水系和境界)为例

李霖, 于忠海, 朱海红, 蒯希

武汉大学资源与环境学院, 湖北武汉 430079

收稿日期:2014-03-13 修回日期:2014-12-23 出版日期:2015-05-20 发布日期:2015-05-27
通讯作者: 朱海红 E-mail: hhzhu@whu.edu.cn E-mail:hhzhu@whu.edu.cn
作者简介:李霖(1960—),男,博士,教授,博士生导师,主要研究方向包括数字制图模型、地理信息本体模型、位置服务技术和遥感技术应用等。E-mail: lilin@whu.edu.cn
基金资助:
国家自然科学基金(41271453;41271458)

Handling Graphic Conflicts between Cartographic Features: Exemplifying Geo-linear Features(Road, River and Boundary)

LI Lin, YU Zhonghai, ZHU Haihong, KUAI Xi

School of Resources and Environmental Sciences, Wuhan University, Wuhan 430079, China

Received:2014-03-13 Revised:2014-12-23 Online:2015-05-20 Published:2015-05-27
Supported by:
The National Natural Science Foundation of China(Nos. 41271453;41271458)

摘要/Abstract

摘要：

按照目前的专业制图规范对地图表达的质量要求,计算机制图原理和技术无法避免制图过程中需要大量人工处理地图要素图形冲突的工作。这种由于数据模型间(数字地理景观模型与数字制图模型间)的差别而产生的技术难题一直是实现快速制图的瓶颈。本文基于“先处理、后符号化”的策略,通过分析引起图形冲突的形式以及地图制图规范对冲突处理的要求,提出了针对图形重叠和图形衔接两类图形冲突处理的基本操作,即将对地图要素(地理要素符号化)的图形处理转变为对地理要素本身的处理,从而减少了后期图形冲突处理的工作量;基于这些基本操作,以地形图制图中产生大量冲突处理的道路、水系和境界要素类型为例,说明如何综合利用这些基本操作,实现对图面冲突自动处理的方法;最后,两幅实际地形图数据试验表明本操作可以提高制图效率。

关键词: 图式表达, 地理数据库, 快速制图, 图面冲突

Abstract:

According to the requirements of map quality by cartographic specifications, the current computer cartographic methodology and technology could not inevitably avoid manually intervening in resolving a large amount of graphic conflicts after symbolization. It results from the differences between Digital Landscape Models and Digital Cartographic Models and has been a bottleneck for fast map-making. Through an investigation into the appearance of cartographic conflicts and cartographic specifications, this article presents a set of basic operations to implement the cartographic strategy “processing before symbolizing” for handling graphic conflicts specifically on two forms of conflicts: graphic overlap and graphic connection. That strategy translates handling graphic conflicts caused by symbolization of geographic features into processing the features-selves so that a lot of thereby conflicts are removed. Applications of those basic operations in resolving cartographic conflicts are outlined by exemplifying some typical conflicts caused by the main topographic features: Road, River system and Boundary. Two experiments on producing topographic maps verify the applicability of the presented operations as well as the paradigm in this study in improving efficiency of map-making.

Key words: cartographic portrayal, geo-database, fast map-making, graphic conflict

中图分类号:

P283.7

李霖, 于忠海, 朱海红, 蒯希. 地图要素图形冲突处理方法——以线状要素(道路、水系和境界)为例[J]. 测绘学报, 2015, 44(5): 563-569.

LI Lin, YU Zhonghai, ZHU Haihong, KUAI Xi. Handling Graphic Conflicts between Cartographic Features: Exemplifying Geo-linear Features(Road, River and Boundary)[J]. Acta Geodaetica et Cartographica Sinica, 2015, 44(5): 563-569.

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地图要素图形冲突处理方法——以线状要素(道路、水系和境界)为例

Handling Graphic Conflicts between Cartographic Features: Exemplifying Geo-linear Features(Road, River and Boundary)

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